Heel-attaching machine.



J. H. POPE &: A. D. ELLIOTT. HEEL ATTAOHING MACHINE.

I APPLICATION FILED MAY 26, 1898. 1,000, 1 1 9.

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COLUMBIA PLANnuRAPH 170.. WASHINGTON, n. c.

Patented Aug. 8, 1911.

J. H. POPE & A. D. ELLIOTT.

HEEL ATI'AGHING MACHINE. APPLICATION FILED MAY 26, 1898.

Patented Aug. 8, 1911.

3 SHEETSSHBET 2 J. H. POPE & A. D. ELLIOTT. HEEL ATTAGHING MACHINE.

APPLICATION FILED MAY 26, 1898.

Patented Aug. 8, 1911.

a 1 mm m 23 s a a v a r i /W 5 a j m m C GILUIIIA PLANOGIAPH 60-, WASHINGTON. D. c.

nmrnn STATES PATENT OI I IQEO JOSEPH H. POPE, OF BROOKTON, AND ALVIN D. ELLIOTT, OF LAWRENCE, MASSACHU- SETTS, ASSIGNORS, BY MESNE ASSIGNMENTS, 'IO UNITED SHOE MACHINERY COM- IPANY, A CORPORATION OF NEW JERSEY.

HEEL-ATTAOIIING MACHINE.

1,ooo,119.

To all whom it may concern:

Be it known that we, JOSEPH H. Porn, of Brockton, in the county of Plymouth and State of Massachusetts, and ALVIN D. ELLIoTr, of Lawrence, in the county of Essex and State of Massachusetts, have invented an Improvement in Heel-Attaching Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to heel attaching machines.

Machines for attaching heels are in common use in which the preliminary pressure for pressing a heel upon the heel seat of a shoe is obtained by movement of a nail block from which the nails are driven through the heel into the shoe.

The primary object of the present invention is to provide an improved machine of this type.

To this end a feature of the invention con sists in the combination with a shoe support of means for imparting movement to a nail block toward the shoe support constructed and arranged to terminate said movement at a predetermined point, regardless of the resistance to compression which may be offered by the work. Heretofore in machines of this type the actuation of the nail block has been yieldingly effected, the pressure imparted to the nail block being transmitted through springs interposed between the nail block and its actuating mechanism. The construction of prior machines has also been such that the maximum pressure applied to the nail block occurs at the end of the working stroke of the drivers. In the present embodiment of this invention, the means for imparting movement to the nail block is so constructed that the pressure applied to the heel through the nail block is a maximum before the drivers are actuated to drive the attaching nails through the heel. This feature of the invention is of particular advantage in preventing displacement of the heel upon the shoe by the drivers in the operation of forcing the nails through the heel into the heel seat. Where such displacement occurs, the nails are more or less crippled and the quality of the work is impaired. The pressure exerted upon the Specification of Letters Patent.

Application filed May 26, 1898.

Patented Au. 8, 1911.

Serial no. 681,819.

heel by the drivers has a considerable tendency to displace the heel both where the heels have been previously loaded with nails and where they have not been so loaded. In the use of loaded heels, it has been found that the portions of the nails embedded in the heels in the loading operation quickly rust and become so firmly fixed that the resistance offered to the drivers in subsequently attaching the heels causes considerable liability of displacement. In attaching heels which have not been previously loaded with nails, the pressure required to force the nails through the heel is necessarily quite great, particularly where, as is now generally the case, the heels have not been before pricked with holes for the reception of the nails.

It will be understood that the invention herein shown as embodied in a machine for attaching loaded heels may be applied as well to machines for attaching heels which have not been loaded or to other machines for inserting nails in heels.

In the present embodiment of the inven tion, the movement of the nail block is positively effected, the pressure applied thereto being transmitted from the primary source of movement of the machine by mechanism having no provision for yielding. Where pressure is applied to a nail block through a yielding device, this device being compressed during the working stroke of the machine assumes its initial condition during the return stroke. The reaction of this compressed device during the return stroke tends to return the parts more forcibly to their initial positions and may cause objectionable vibration.

An important feature of the invention consists in the provision of two trains of mechanism, one of which imparts reciprocatory movement to the nail block and the other to the drivers. The construction and arrangement is preferably such that in the movement of the nail block toward the shoe support imparted by the first train of mechanism the drivers are also moved with the nail block by the same train of mechanism. After the movement of the nail block toward the shoe support has substantially terminated, further movement is imparted to the drivers by the second train of mechanism to drive the attaching nails. To this end the second train of mechanism is so constructed that a preliminary movement of the drivers with the nail block toward the shoe support occurs before said mechanism becomes effective to transmit movement to the drivers. A. convenient construction comprises a provision for lost motion in said second train of mechanisn'l, this lost motion being taken up in the movement of the nail block and drivers in unison toward the shoe support imparted by the first train of mechanism.

Another feature of the invention consists in means for adjusting the drivers to vary their outward limit of movement and thus vary the extent to which the nails are driven into the heel. The provision of this feature permits the machine to be readily adapted for either surface nailing or blind nailing and also permits the extent to which the nails project above the surface of the heel in blind nailing to be varied to secure the best results.

In the particular construction hereinafter described, the nail block is sustained and actuated by a tubular spindle within which is arranged a rod for supporting and actuating a driver plate. The movement of the spindle is effected by two camshaped members arranged in line with the spindle, and by the oscillation of these members from a suitable driving member movement is imparted to the spindle, said movement being terminated before the nails are driven. Movement of the drivers independent of the nail block is effected by said members during a portion of their stroke wherein they do not impart movement to the nail block.

Other features of the invention will be hereinafter described and defined in the claims.

In the drawings.Figure 1 is a view in side elevation of a portion of a heel attaching machine constituting one embodiment of the invention; Fig. 2 is a perspective view of a driver-actuating slide; Fig. 3 is a view in front elevation of the machine shown in Fig. 1; Fig. 4 is a view in vertical section on the line x-a2 of Fig. 3; Fig. 5 is a view similar to Fig. 4, showing the parts in a different position; and Fig. 6 is a view similar to Fig. 4, showing the parts at the beginning of the operation of driving the nails.

Referring to the drawings, the machine shown therein is in part the same as that illustrated in U. S. Letters Patent, No. 446,883, granted Feb. 10, 18-91. The machine of this patent is an example of the general type of machine which it is the primary object of the present invention to improve.

The machine shown on the drawings comprises a frame A upon which is mounted a shoe support B and cooperating parts for sustaining and positioning a shoe as shown in the patent referred to. The positioning means shown comprises a bracket 23 upon which are mounted slides 28 and 29 having forwardly projecting ears m upon which is sustained a heel clamp 29 A rock-shaft 31 provided with a finger piece 33 is shown and has the function described in said patent.

At the front of the machine are provided guides E which receive a spindle E formed for vertical movement in said guides. The spindle E is provided at its upper end with a head or plate E which carries a block a. secured thereto by screws (4. The block a carries removably a nail block 6 and for this purpose is provided with brack ets a secured to its upper side by screws a said brackets having formed therein shoulders or ways for the reception of the nail block. The nail block 6 provided with driver passages and a top plate 6 is held in position between the brackets a by spring-pressed pins 6 Beneath and in line with the spindle E are two oscillatory cam members or toggle members (Z, (Z. The upper member (Z is pivotally connected to the spindle E by means of a pin 3. The lower member d is pivotally mounted upon a stud (Z carried by a foot (Z held in a socket formed in the frame A by means of a screw al The lower .member (Z is connected by a link G to a crank mounted upon the driving shaft A. The upper member cl rests upon the lower member (Z and the contacting surfaces of the two members are curved to permit the upper member to roll upon the lower member in the oscillation of the latter. The swinging movement of the upper member (Z is effected by intermeshing gear teeth formed upon the two members, the teeth 7 on the lower member cooperating with teeth f on the upper member to impart movement to the upper member. The contacting surfaces of the members (Z and d are so shaped that during approximately the first half of the forward movement of the link G- the spindle E is raised, and during the latter half of said forward movement said spindle remains in stationary position. As will be obvious, this result may be conveniently secured by curving the for ward portions of the members (Z and (5 about centers t (in Fig. 5) and forming the rear portions of said surfaces about the centers 3 and (F.

The spindle E is made hollow to receivea driver-actuating rod or plunger shown as made in two sections 0 and c for convenience in assembling. The upper section 0 is provided at its upper end with a flange 0 which normally rests upon the upper sur face of the block 64. Upon the flange 0 is mounted a driver plate of the form hereinafter described. The nail block 6 is provided with a depending rod 5 which enters a socket c in the driver rod section 0'. The nail block 6 is thus maintained in proper position upon the brackets (L The lower end of the driver rod section 0 is provided with a concave recess in which is received the curved end of a slide 0 carried by the upper toggle member (6. The slide 0 is received within a suitable guideway formed in said toggle member and is guided in its movement by the pin 3 which lies within the slot 2 in the slide and a pin 5 which is inserted in the toggle member (Z in position to enter a slot l in the lower por tion of the slide. The lower end of the slide 0 is engaged by a cam block f, the shank f of which is received within a socket formed in the lower toggle member (Z. The contacting surfaces of the slide 0 and the cam block f are so shaped that as they roll over each other in the latter portion of the forward movement of the link G the slide 0 will be forced upwardly to actuate the driver rod. To this end, as will be seen from Figs. 4 and 5, the upper surface of the cam block 7' increases in height toward its rear, and the surface of the slide 0 is similarly formed. The upper toggle member (Z is provided with a roll 6 mounted upon a stud 7, this roll being engaged by the side of the slide 0 at its lower end and serving to reduce frictional resistance to movement of said slide.

The nail drivers 6, as will appear from Fig. 4, rest at their lower ends upon a driver plate. The driver plate comprises an upper section Z2, which is held in fixed position through engagement therewith of the rod 5 and a lower section 6 These sections are wedge-shaped in longitudinal section and by adjustmentof the lower section b the position of the drivers may be changed to vary the upward limit of their movement. To facilitate adjustment of the lower wedgeshaped plate 6 there is provided a thumb nut mounted upon a threaded pin carried by the flange 0 of the driver rod, said thumb nut engaging a depending ear upon the driver plate section If. The driver plate section b is slotted in the vicinity of the rod 6 to permit its adjustment.

In the operation of the machine shown, a shoe S having been placed in position upon the shoe support 13 and a loaded heel placed in position upon the upper surface of the nail block with its nails projecting into the driver passages of the nail block, the machine is started in the usual manner. The initial position of the parts is shown in Fig. l of the drawings. In the first part of the forward movement of the link G the forward portions of the toggle members (Z and d have rolling contact and on account of the contour of their contacting faces the nail block 6 is raised to press the heel firmly upon the heel seat of the shoe. It will be observed that in the upward movement of the nail block 6 the drivers are also raised with the nail block. Throughout theentire cycle of operations of the machine the drivers project into the driver passages of the nail block. Alinement of the drivers and the driver passages is thus at all times insured. Fig. 6 shows the position of the parts after this preliminary pressure has been completed. At this point the slide 0 and the cam block f come into operative contact and the drivers are then raised to drive the nails through the heel into the shoe. From the position of the parts shown in Fig. 6 to the end of the forward movement of the link G wherein the parts are in the position shown in Fig. 5, the toggle members (Z and (Z roll over each other without effecting change in position of the spindle 1 1*. The maximum pressure applied to the work through the nail block is thus attained before the drivers are actuated to drive the attaching nails. In the return stroke of the link G the toggle members are returned to their initial positions, the parts sustained by the upper toggle member descending by gravity to their lowermost positions.

Having described our invention, what we claim as new and desire to secure by Letters Patent, is

1. A heel attaching machine, having in combination, a shoe support, a nail block, provided with driver passages and arranged for movement toward and from the shoe support for pressing a heel upon a shoe, drivers arranged in alinement with said passages and movable with the nail block during the pressing of the heel, means for mov ing said nail block, and mechanism arranged for operation independent of said means for imparting further movement to the drivers to drive the attaching nails.

2. In a heel-attaching machine, the following instrumentalities, viz: a hollow spindle, a nail-block mounted in fixed bearings thereon, means to move said spindle, a driver-plate and drivers, a driver-rod located in said spindle, and means to move said driver-rod in said spindle to actuate the driver-plate and drivers while the nailblock holds the heel compressed.

3. In a heel attaching machine, the combination with a nail block provided with driver passages, of a plurality of toggle members arranged to be automatically oscillated and constructed to impart movement to said nail block during the first portion of their acting stroke and to maintain the nail block in stationary position during a following portion of said stroke, drivers arranged in alinement with said driver passages, and means actuated by the movement of said toggle members for moving the drivers while the nail block is stationary.

see

4. A nailblock, its contained drivers, a driver-rod having a head, a two-part driverplate located between said head and the ends of said drivers, and means to adjust one of said plates with relation to the other to vary the effective thickness of the driver-plate and thereby vary the stroke of the drivers.

5. In a heel-attaching machine, a spindle, a nail-block fixed thereto, a driver-plate located below said nail-block and adapted to support by its upper side a series of drivers, and a driver-rod located in said spindle; combined with means to actuate said spindle and driver-rod at times in unison and thereafter to actuate said driver-rod independ ently of the spindle and nail-block, whereby a heel may be first compressed and then have nails driven into it.

(i. In a heel attaching machine a rigidly sustained shce support, a nail block adapted to support a heel and having a series of driver passages, means for positively actuating said nail block for forcing the heel sustained thereon against a shoe upon said support and. compressing said heel, a series of drivers projecting at all times into the driver passages of the nail block, and means for moving aid drivers while the nail block is substantially at rest for driving nails through the heel and into the sole of the shoe.

7. In a machine for attaching heels, a shoe support, a nail block arranged for movement toward and from the shoe sup port, a series of drivers operating in the nail block for driving heel attaching nails, mechanism for actuating the drivers constructed to impart to them a fixed amount of movement and manually operated means independent of the nail block for varying the limit of outward movement of the drivers in the nail block to vary the extent to which the nails are driven into the heel.

In a heel-attaching machine, a driverplate composed of two wedgeshaped plates, one lying above the other, one of said plates being movable relative to the other, and means to adjust said movable plate to increase the effective thickness of the driverplate.

9. In a machine of the class described, a nail-bled: provided with driver passages, drivers arranged for movement in said passages for driving heel attaching nails, and means for actuating said drivers to drive nails from the nail-block including a plurality of wedges arranged to permit adjustment of the drivers in the nail-block to vary the extent to which the nails are driven into a heel.

10. In a heelattaching machine, a nailblock and a series of drivers for driving nails from said nail-lolock into a heel, toggle members for moving the nail-block to compress the heel, a movable piece in one of the toggle members, connections between said movable piece and the drivers, and a cam on the other toggle member for actuating said movable piece to operate the drivers.

11. In a heel attaching machine a nail block provided with driver passages, nail drivers arranged to project at all times into the passages of the nail block, means for positively actuating said nail block to compress the heel and means for thereafter actuating the drivers independently of the nail block to drive nails through the heel into the shoe.

12. In a machine for attaching heels, a nailblock arranged for engagement with the tread face of a heel, an unyielding support for said. nailrblock, nail drivers arranged for movement in said nailblock and unyielding means for actuating said drivers, including mechanism for changing the position of the drivers in the nail-block whereby the ends of the drivers may be arranged nearer to, or farther from, the face of the nail-block.

13. In a heel-attaching machine, a nailblock, a spindle connected therewith and having a pivoted cam-shaped toggle-member, guides for said spindle, a cam-faced toggle member mounted on an independent pivot, teeth carried by both said toggle members and intermeshing, and means to move one of said toggle members positively, it moving the other member to actuate the spindle and compress a heel, combined with a driver-plate and driver, and means for moving them after the completion of the heel compressing stroke of the spindle to drive nails through the heel to attach the latter to a sole.

14. In a heel-attaching machine, a spindle, a nail-block carried thereby, two connected toggle members, a driverplate, a rod located in said spindle for moving said driver-plate, a slide-bar mounted loosely in one of said toggle members, an antifriction roller working against one edge 01' said slide-bar, means to actuate said toggle members, a device carried by the other toggle member to act against and move said slidebar in said spindle as the toggle is straightened to drive nails for attaching a heel to a shoe.

15. A heel attaching machine, having in combination, a shoe support, a nail block provided with driver passages, drivers arranged to project at all times into said passages, means for automatically and positively moving the nail block toward the shoe support to press a heel upon a shoe, and means for actuating the drivers to drive the attaching nails.

16. A heel attaching machine, having in combination. a shoe support, a nail block provided with driver passages, drivers arranged to project at all times into said passages, means for moving the nail. lolocl: toward the shoe support to press a heel upon a shoe, and mechanism independent of said means for imparting movement to the drivers to drive the attaching nails.

17. A heel attaching machine, having in combination, a shoe support, a nail block, drivers arranged for operation in said nail block, means for rigidly sustaining said support against pressure applied to the work by the nail block and drvers, means for advancing the nail block and drivers simultaneously and at the same speed toward the shoe support to cause compression of a heel and additional means to advance the drivers while the nail block remains stationary to attach the heel.

18. In a heel nailing machine, a work support, a movable nail block, a movable gang of drivers, a train of mechanism for advancing the nail block and drivers toward the work support, and a second train of mechanism for advancing the drivers relatively to the nail block constructed to permit movement to be imparted initially to the drivers by the firstnamed train of mechanism and to impart further movement thereafter to said drivers.

19. In a heel nailing machine, a work support, a movable nail block, a movable gang of drivers having their nail engaging ends in their retracted position within the passages of the nail block. a train of mechanism for advancing the nail block and drivers toward the work support, and. a second train of mechanism for advancing the drivers relatively to the nail block constructed to permitmovement to be imparted initially to the drivers by the first-named train of mechanism and to impart further movement thereafter to said drivers.

20. In a heel nailing machine, a work support, a movable nail block, a movable gang of drivers, a train of mechanism for advancing the nail block and drivers toward the work support, and a second train of mechanism for advancing the drivers relatively to the nail block including power transmitting members normally out of operative contact and arranged to be given relative approaching movement by the first train of mechanism during the movement toward the work support imparted by said mechanism to the nail block and drivers.

21. In a heel nailing machine, a work support, a movable nail block, a movable gang of drivers, a train of mechanism for advancing the nail block and drivers toward the work support and a second train of mechanism for advancing the drivers relatively to the nail block including power transmitting members arranged to remain out of operative contact during the movement of the nail block and drivers imparted by the first mechanism and to be thereafter brought into contact to render said second mechanism effective.

22. A heel attaching machine, having in combination, a shoe support, a movable nail block, a movable gang of drivers, a train of mechanism for advancing the nail block and drivers toward the shoe support, and a second train of mechanism for advancing the drivers relatively to the nail block including power transmitting members normally out of operative contact and arranged to be brought into contact at approximately the end of movement of the nail block toward the shoe support whereby movement is initially imparted to the drivers by the first train of mechanism, and further movement is thereafter imparted by a second train of mechanism.

23. A work support, a nail block, a support for said nail block movable toward said work support, a plunger alsosupported in said nail block support and movable therewith and also relatively thereto toward said work support, a power transmitting member arranged to transmit movement to said plunger and normally out of operative contact with its actuating means, drivers carried by said plunger, actuating means for acting upon said member and moving said plunger relatively to said nail block, and

means for moving the nail block and plunger support toward said work support and for imparting relative approaching movement to said member and actuating means during the movement of the nail block toward the Work support.

24. A work support, a nail block, a support for said nail block movable toward said work support, a plunger also supported in said nail block support and movable therewith and also relatively thereto toward said work support, drivers carried by said plunger, means for moving the nail block and plunger support toward said work support and means for thereafter moving said plunger relatively to said nail block.

25. A work support arranged to present a shoe in position for a heel to be attached, a nail block, a support for said nail block movable toward said work support, a plunger mounted in said nail block support and movable relatively to said support toward said work support, drivers carried by said plunger, means for positively moving the nail block support from a position remote from said work support toward said work support to press a heel against a shoe, and means for moving said plunger relatively to said nail block to cause the drivers to engage nails in said nail block and drive them into the heel seat of the shoe to secure the heel to the shoe.

26. A work support, a head movable toward said work support, a nail block secured to said head, driver carrying means arranged upon said head for movement with and relative to said head toward and away from said Work support, means for moving said head toward the Work support, and additional means for moving said driver carrying means toward the Work support.

27. A Work support, anail block, nail passages in said nail block, means for supporting said nail block to which said nail block is removably but rigidly secured, a plunger supported for sliding movement in said means, drivers carried by said plunger ex tending into said nail block, mechanism for moving said means, said plunger and said nail block toward the Work support whereby the drivers remain in said nail passages, and

additional mechanism for moving the pluni5 ger in said means to cause the drivers to drive heel attaching nails from said nail block.

In testimony whereof, We have signed our names to this specification, in the presence 20 of two subscribing Witnesses.

JOSEPH H. POPE. ALV IN D. ELLIOTT. lVitnesses GEO. W. GREGORY, EMMA J. BENNETT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

